A brief piece in the Wall Street Journal’s “Dealbook” discussed the potential of natural gas powered vehicles, largely as a way to stop falling prices for natural gas.

One hope for many natural gas producers reeling from collapsing prices is wider adoption of natural-gas-powered cars.

The biggest hurdle so far: lack of infrastructure to refuel them.

But Steven Mueller, CEO of Southwestern Energy, says if 10% of passenger cars were powered by natural gas, gasoline prices would fall by $1.60/gallon and gas producers would get 4 billion cubic feet/day in demand.